Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHNd1S9Lp4yWe9tuuvFCtOr1MsA7FNC/jXYb7ZS4jAERCJM6XiKAYD8DF58… (844 chars)"
  }
}